See also:

Control of a Vehicle
Braking, steering, and accelerating are important factors in helping to control a vehicle while driving. ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if ...

Change Compass Zone
The vehicle may have this feature. To change the compass zone through the DIC, see Compass. ...